package chap03;

public class chap07 {
    class Student{
        private String name;
        private int age;
        public Student(){ }
        public Student(String n){
            name = n;
        }
        public Student(String n, int a){
            name = n;
            age = a;
        }
        public void read(){
            System.out.println("我是："+name+",年龄："+age);
        }
    }
    public class Example07{
        public void main(String[] args){
            Student stu1 = new  Student("张三");
            Student stu2 = new Student("张三",18);
            stu2.read();
        }
    }
}
